Code Testcase Testcase Result 122. Best Time to Buy and Sell Stock II

class Solution {
    public int maxProfit(int[] prices) {
        int max=0;
        int buyprice=prices[0];
        for(int i=1;i<prices.length;i++){
            if(buyprice< prices[i]){
                max+=prices[i]-buyprice;
                buyprice=prices[i];
            }
            else{
                buyprice=prices[i];
            }
        }
        return max;
    }
}